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Old 21st Jan 2007, 15:37
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RatherBeFlying
 
Join Date: Sep 2001
Location: Toronto
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Thrust is achieved by accelerating a mass.

If you were in a boat with a water tank, you could propel it analogous to a rocket by filling a bucket with water only from the tank and pitching the water over the stern. When you fill your bucket instead from the water outside the boat, the analogy becomes an air breathing engine.

The thrust does not come from the turbine; in fact, the turbine extracts energy from the hot air to power the compressor and optionally a fan, propeller or rotor which produces the majority of thrust.
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